Autonomous System
AS7539 National Center for High-performance Computing
GovernmentActiveTaiwanAPNIC
AS7539 (TWAREN-TW) is a government network operated by National Center for High-performance Computing in Taiwan, registered with APNIC. It has 14 IPv4 prefixes with 90,112 addresses and 1 IPv6 prefix, which makes it the 2,483rd largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses90,112in 14 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#2,483of 82,200 active ASNs
Details
OrganizationNational Center for High-performance Computing
AS nameTWAREN-TW
Websitetwaren.net
Country Taiwan (TW)
Network typeGovernment
RegistryAPNIC
Abuse contactabuse@twaren.net
Registered—
Last updated2025-11-06
IPv4 prefixes
14 prefixes · 90,112 addresses| Network | Addresses | First – last address |
|---|---|---|
| 140.110.0.0/16 | 65,536 | 140.110.0.0 – 140.110.255.255 |
| 211.73.64.0/19 | 8,192 | 211.73.64.0 – 211.73.95.255 |
| 203.145.208.0/20 | 4,096 | 203.145.208.0 – 203.145.223.255 |
| 211.79.48.0/20 | 4,096 | 211.79.48.0 – 211.79.63.255 |
| 140.110.200.0/21 | 2,048 | 140.110.200.0 – 140.110.207.255 |
| 203.145.200.0/21 | 2,048 | 203.145.200.0 – 203.145.207.255 |
| 103.124.72.0/22 | 1,024 | 103.124.72.0 – 103.124.75.255 |
| 120.101.64.0/22 | 1,024 | 120.101.64.0 – 120.101.67.255 |
| 103.160.220.0/23 | 512 | 103.160.220.0 – 103.160.221.255 |
| 211.73.68.0/23 | 512 | 211.73.68.0 – 211.73.69.255 |
| 103.124.72.0/24 | 256 | 103.124.72.0 – 103.124.72.255 |
| 103.124.73.0/24 | 256 | 103.124.73.0 – 103.124.73.255 |
| 140.110.215.0/24 | 256 | 140.110.215.0 – 140.110.215.255 |
| 211.73.72.0/24 | 256 | 211.73.72.0 – 211.73.72.255 |
140.110.0.0/16 211.73.64.0/19 203.145.208.0/20 211.79.48.0/20 140.110.200.0/21 203.145.200.0/21 103.124.72.0/22 120.101.64.0/22 103.160.220.0/23 211.73.68.0/23 103.124.72.0/24 103.124.73.0/24 140.110.215.0/24 211.73.72.0/24
IPv6 prefixes
1 prefix- 2001:e10::/32
2001:e10::/32
Query AS7539 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS7539&key=YOUR_API_KEY"Any address in its prefixes resolves to AS7539, with or without a key:
curl "https://api.ipapi.is/?q=140.110.0.1"Largest networks in Taiwan
AS3462 Chunghwa Telecom Co., Ltd.16,360,192 IPv4 addressesAS1659 This aut-num object created as part of6,634,240 IPv4 addressesAS4780 Digital United Inc.5,156,608 IPv4 addressesAS9924 Taiwan Fixed Network CO.,LTD.4,313,600 IPv4 addressesAS9919 New Century InfoComm Tech Co., Ltd.3,134,976 IPv4 addressesAS9674 Far EastTone Telecommunication Co., Ltd.2,298,624 IPv4 addresses